Hair dyeing composition comprising an oxidation dye, a scleroglucan gum and a cationic polymer

ABSTRACT

The disclosure relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as hair, comprising one or more oxidation dyes, one or more scleroglucan gums in a total weight content greater than or equal to 0.5% relative to the total weight of the composition, and one or more cationic polymers. The disclosure also relates to a method for dyeing keratin fibers using said composition and to a multi-compartment device suitable for implementing said composition.

The present invention relates to the field of dyeing keratin fibers and more particularly to the field of hair dyeing.

Among the methods for dyeing human keratin fibers, such as the hair, mention may be made of oxidation dyeing or permanent dyeing. More particularly, this form of dyeing uses one or more oxidation dyes, usually one or more oxidation bases optionally combined with one or more couplers.

In general, oxidation bases are chosen from ortho- or para-phenylenediamines, ortho- or para-aminophenols and heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds which, when combined with oxidizing products, can give access to colored species.

The shades obtained with these oxidation bases are quite often varied by combining them with one or more couplers, these couplers being notably chosen from aromatic meta-diamines, meta-aminophenols, meta-diphenols and certain heterocyclic compounds such as indole compounds.

The variety of molecules used as oxidation bases and couplers allows a wide range of colors to be obtained.

Oxidation dyeing processes thus consist in using with these dye compositions a composition comprising at least one oxidizing agent, generally hydrogen peroxide, under alkaline pH conditions in the vast majority of cases. The role of this oxidizing agent is to reveal the coloring, via an oxidative condensation reaction between the oxidation dyes.

Oxidation dyeing must moreover satisfy a certain number of requirements. Thus, it must be free of toxicological drawbacks, it must enable shades to be obtained in the desired intensity and it must show a good wear property in the face of external attacking factors such as light, bad weather, washing, permanent waving, perspiration and rubbing.

The dyeing process must also make it possible to cover gray hair and, finally, must be as unselective as possible, i.e. it must produce the smallest possible color differences along the same keratin fiber, which generally includes areas that are differently sensitized (i.e. damaged) from its end to its root, so as to obtain the most uniform possible coloring of the keratin fibers. Dye compositions must also give good cosmetic properties to keratin fibers, in particular care, softness and/or hold, and must have good working qualities, in particular they must be easy to apply, while at the same time achieving visible (i.e. notably intense, chromatic), uniform and fast coloring results.

The compositions used in a dyeing process must also have good mixing and application properties on keratin fibers, and notably good rheological properties so as not to run down the face, onto the scalp or beyond the areas that it is proposed to dye, when they are applied; this notably allows uniform application from the roots to the ends.

The composition according to the invention also shows very good stability over time for several weeks.

In particular, it is sought to obtain dye compositions that are stable over time for several weeks. For the purposes of the present invention, the term “stable” in particular means that physical properties such as the appearance, the pH and/or the viscosity vary little or not at all over time, and in particular that the viscosity of the composition does not change or changes little during storage and/or that the composition does not undergo phase separation during storage.

Specifically, it is desirable for the dye compositions to be stable over time, in particular stable after 1 month at 45° C., or even after 2 months at 45° C.

It is also sought to obtain dye compositions that are stable over a wide pH range and in particular with respect to extreme pH values, for example to alkaline pH values ranging from 9 to 12. Finally, the dye compositions may occasionally be destabilized (undergo phase separation) by high contents of certain compounds, for instance oxidation dyes and/or cationic compounds and in particular cationic polymers, and it is thus desirable for these compositions to be stable under these conditions, in particular for them not to undergo phase separation.

These aims and others are achieved by the present invention, one subject of which is thus a composition (A) for dyeing keratin fibers, preferably human keratin fibers such as the hair, comprising:

-   -   one or more oxidation dyes;     -   one or more scleroglucan gums in a total content of greater than         or equal to 0.5% by weight relative to the total weight of the         composition;     -   one or more cationic polymers.

Another subject of the invention relates to a ready-to-use composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, obtained after mixing a composition (A) comprising:

-   -   one or more oxidation dyes;     -   one or more scleroglucan gums in a total content of greater than         or equal to 0.5% by weight relative to the total weight of the         composition;     -   one or more cationic polymers;     -   and a composition (B) comprising one or more chemical oxidizing         agents.

For the purposes of the invention, the term “ready-to-use composition” refers to any composition that is intended to be applied immediately to keratin fibers.

The invention is also directed toward a process for dyeing keratin fibers, and in particular human keratin fibers such as the hair, involving the application to the fibers of a dye composition (A) as defined previously, and of an oxidizing composition (B) comprising at least one chemical oxidizing agent, preferably chosen from hydrogen peroxide and/or one or more systems for generating hydrogen peroxide, preferably from hydrogen peroxide, the oxidizing composition (B) being mixed with the dye composition just before use (application to said fibers) (extemporaneously) or at the time of use, or alternatively the dye composition and oxidizing composition being applied sequentially without intermediate rinsing.

A subject of the invention is also a multi-compartment device (or “kit”) for implementing the composition for dyeing keratin fibers, preferably comprising at least two compartments, a first compartment containing the dye composition (A) as defined previously, and the second compartment containing at least one oxidizing composition (B) comprising at least one chemical oxidizing agent, preferably chosen from hydrogen peroxide and/or one or more systems for generating hydrogen peroxide, preferably from hydrogen peroxide, the compositions in the compartments being intended to be mixed before application, to give the formulation after mixing; in particular, the kit may be an aerosol device.

For the purposes of the present invention, the term “composition for dyeing” or “dye composition” means a composition intended to be applied to keratin fibers, preferably human keratin fibers and in particular the hair, optionally after mixing with an oxidizing composition comprising at least one chemical oxidizing agent. For the purposes of the present invention, the term “ready-to-use dye composition” or “ready-to-use composition” means a composition resulting from mixing a dye composition and an oxidizing composition. The ready-to-use dye composition may be prepared just before application to said keratin fibers.

The compositions according to the invention can thus give very good dyeing performance on keratin fibers, notably in terms of build-up, intensity, chromaticity and/or selectivity. They also afford compositions which have good rheological properties so as not to run down onto the face, the scalp or beyond the areas that it is proposed to dye, when they are applied.

The compositions according to the invention are stable. For the purposes of the present invention, the term “stable” in particular means that physical properties such as the appearance, the pH and/or the viscosity vary little or not at all over time, and in particular that the viscosity of the composition does not change or changes little during storage and/or that the composition does not undergo phase separation during storage. In particular, it is desirable for the dye compositions to be stable over time, in particular stable after 1 month at 45° C., or even after 2 months at 45° C.

Furthermore, the compositions according to the invention have the advantage of being stable (of not undergoing phase separation) independently of the pH and in particular with respect to extreme pH values (for example alkaline pH values ranging from 9 to 12). Finally, the compositions are preferably stable (do not undergo phase separation) even in the presence of a high content of certain compounds, for instance oxidation dyes and/or cationic compounds, such as cationic polymers, for instance in the presence of more than 0.5% by weight.

Moreover, the compositions of the invention are advantageously translucent, which gives them a visual appearance that the consumer finds esthetic and attractive, and can contribute in terms of fiber softness and care qualities and also in terms of ease of straightening and manageability.

Other features and advantages of the invention will emerge more clearly on reading the description and the examples that follow.

In the text hereinbelow, unless otherwise indicated, the limits of a range of values are included in that range, notably in the expressions “between” and “ranging from . . . to . . . ”.

The keratin fibers are preferably human keratin fibers, preferably the hair.

The expression “at least one” is equivalent to the expression “one or more”.

Advantageously, the composition according to the invention has a thickened texture, and is in cream or gel form, preferably in gel form, and is preferably translucent.

Thus, the composition according to the invention generally has, at room temperature, a viscosity of greater than 50 cps, preferably between 200 and 100 000 cps, more preferentially between 500 and 50 000 cps, even more preferentially between 800 and 10 000 cps, and better still from 1000 to 8000 cps measured at 25° C. at a spin speed of 200 rpm using a rheometer such as a Rheomat RM 180 equipped with a No. 3 or 4 spindle, the measurement preferably being taken after 60 seconds of rotation of the spindle (after which time stabilization of the viscosity and of the spin speed of the spindle is observed).

Oxidation Dyes

The composition according to the invention comprises one or more oxidation dyes.

The oxidation dye precursors that may be used in the present invention are generally chosen from oxidation bases, optionally combined with one or more couplers.

The oxidation bases may preferably be chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols and heterocyclic bases, and the addition salts thereof.

Preferentially, the oxidation base(s) of the invention are chosen from para-phenylenediamines and heterocyclic bases. Among the para-phenylenediamines, examples that may be mentioned include para-phenylenediamine, para-tolylenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N,N-dimethyl-para-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine, 4-amino-N,N-diethyl-3-methyl aniline, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methyl aniline, 4-N,N bis(β-hydroxyethyl)amino-2-chloroaniline, 2-β-hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-(β-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, N,N-dimethyl-3-methyl-para-phenylenediamine, N-ethyl-N-(β-hydroxyethyl)-para-phenylenediamine, N-(β,γ-dihydroxypropyl)-para-phenylenediamine, N-(4′-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine, N-(β-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene and 3-hydroxy-1-(4′-aminophenyl)pyrrolidine, and the addition salts thereof with an acid.

Among the para-phenylenediamines mentioned above, para-phenylenediamine, para-tolylenediamine, 2-isopropyl-para-phenylenediamine, 2-(3-hydroxyethyl-para-phenylenediamine, 2-β-hydroxy ethyl oxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine and 2-methoxymethyl-para-phenylenediamine, and the addition salts thereof with an acid, are particularly preferred.

Among the bis(phenyl)alkylenediamines, examples that may be mentioned include N,N′-bis(β-hydroxy ethyl)-N,N′-bis(4′-aminophenyl)-1,3-diaminopropanol, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)ethylenediamine, N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(4-methylaminophenyl)tetramethylenediamine, N,N′-bis(ethyl)-N,N′-bis(4′-amino-3′-methylphenyl)ethylenediamine and 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, and the addition salts thereof.

Among the para-aminophenols, examples that may be mentioned include para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(β-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol, and the addition salts thereof with an acid.

Among the ortho-aminophenols, examples that may be mentioned include 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 5-acetamido-2-aminophenol and the addition salts thereof.

Among the heterocyclic bases, mention may be made in particular of pyridine derivatives, pyrimidine derivatives and pyrazole derivatives.

Among the pyridine derivatives that may be mentioned are the compounds described, for example, in patents GB 1 026 978 and GB 1 153 196, for instance 2,5-diaminopyridine, 2-(4-methoxy phenyl)amino3-aminopyridine and 3,4-diaminopyridine, and the addition salts thereof.

Other pyridine oxidation bases that are useful in the present invention are the 3-aminopyrazolo[1,5-a]pyridine oxidation bases or addition salts thereof described, for example, in patent application FR 2 801 308.

Examples that may be mentioned include pyrazolo[1,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[1,5-a]pyrid-3-ylamine, 2-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyrid-3-ylamine, (3-aminopyrazolo[1,5-a]pyrid-7-yl)methanol, 2-(3-aminopyrazolo[1,5-a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyrid-7-yl)ethanol, (3-aminopyrazolo[1,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-diamine, 5-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyrid-5-yl)(2-hydroxyethyl)amino]ethanol, 2-[(3-aminopyrazolo[1,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-5-ol, 3-aminopyrazolo[1,5-a]pyridin-4-ol, 3-aminopyrazolo[1,5-a]pyridin-6-ol, 3-aminopyrazolo[1,5-a]pyridin-7-ol, 2-β-hydroxyethoxy-3-aminopyrazolo[1,5-a]pyridine and 2-(4-dimethylpiperazinium-1-yl)-3-aminopyrazolo[1,5-a]pyridine, and also the addition salts thereof.

More particularly, the oxidation bases according to the invention are chosen from 3-aminopyrazolo[1,5-a]pyridines preferably substituted in position 2 with:

a) a (di)(C₁-C₆)(alkyl)amino group, the alkyl groups possibly being substituted with one or more hydroxyl, amino or imidazolium groups;

b) a cationic or non-cationic 5- to 7-membered heterocycloalkyl group comprising from 1 to 3 heteroatoms, optionally substituted with one or more (C₁-C₆)alkyl groups such as di(C₁-C₄)alkylpiperazinium;

c) a (C₁-C₆)alkoxy group optionally substituted with one or more hydroxyl groups, such as β-hydroxyalkoxy, and also the addition salts thereof.

Among the pyrimidine derivatives, mention may be made of the compounds described, for example, in patents DE 2359399, JP 88169571, JP 05-63124 and EP 0 770 375 or patent application WO 96/15765, such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and the addition salts thereof, and the tautomeric forms thereof, when a tautomeric equilibrium exists.

Among the pyrazole derivatives mention may be made of the compounds described in patents DE 3843892 and DE 4133957 and patent applications WO 94/08969, WO 94/08970, FR-A-2 733 749 and DE 195 43 988, for instance 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-(β3-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4′-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4′-methoxyphenyl)pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4,5-diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2′-aminoethyl)amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-tri aminopyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole and 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole, and the addition salts thereof. Preferably, the heterocyclic oxidation bases of the invention are chosen from 4,5-diaminopyrazoles such as 4,5-diamino-1-β3-hydroxyethyl)pyrazole. Use may also be made of 4,5-diamino-1-W-methoxyethyl)pyrazole.

Use will preferably be made of a 4,5-diaminopyrazole and even more preferentially of 4,5-diamino-1-(β-hydroxyethyl)pyrazole and/or a salt thereof.

Pyrazole derivatives that may also be mentioned include diamino-N,N-dihydropyrazolopyrazolones and notably those described in patent application FR-A-2 886 136, such as the following compounds and the addition salts thereof: 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-bis(2-hydroxyethyl)-1,2-dihydropyrazol-3-one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2,3-diamino-5,6,7,8-tetrahydro-1H,6H-pyridazino[1,2-a]pyrazol-1-one, 4-amino-1,2-diethyl-5-(pyrrolidin-1-yl)-1,2-dihydropyrazol-3-one, 4-amino-5-(3-dimethylaminopyrrolidin-1-yl)-1,2-diethyl-1,2-dihydropyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one.

Use will preferably be made of 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or a salt thereof.

As heterocyclic bases, use will preferentially be made of 4,5-diamino-1-(β-hydroxyethyl)pyrazole and/or 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or a salt thereof.

The oxidation base(s) used in the context of the invention are generally present in an amount ranging from 0.001% to 10% by weight approximately, and preferably ranging from 0.005% to 5%, relative to the total weight of the dye composition.

The additional couplers that are conventionally used for the dyeing of keratin fibers are preferably chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers and heterocyclic couplers, and also the addition salts thereof.

Examples that may be mentioned include 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 1-hydroxy-3-aminobenzene, 2-methyl-5-aminophenol, 3-amino-2-chloro-6-methylphenol, 2-methyl-5-hydroxy ethylaminophenol, 2,4-diamino-1-(β-hydroxyethyloxy)benzene, 2-amino-4-(β-hydroxy ethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, thymol, 1-ß-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3,5-diamino-2,6-dimethoxypyridine, 1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, 2,6-dimethyl[3,2-c]-1,2,4-triazole and 6-methylpyrazolo[1,5-a]benzimidazole, the addition salts thereof with an acid, and mixtures thereof.

According to one embodiment, the composition comprises at least one oxidation base and at least one coupler.

In general, the addition salts of the oxidation bases and couplers that may be used in the context of the invention are notably chosen from the addition salts with an acid, such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.

In the context of the present invention, when they are present, the coupler(s) are generally present in a total amount ranging from 0.001% to 10% by weight approximately of the total weight of the dye composition, and preferably ranging from 0.005% to 5% by weight relative to the total weight of the dye composition.

Preferably, the total content of oxidation dyes in the composition according to the invention is between 0.001% and 20% by weight, preferably between 0.001% and 10% by weight, preferably between 0.01% and 5% by weight, relative to the weight of the composition.

Scleroglucan Gums

According to the invention, composition (A) comprises one or more scleroglucan gums in a total content of greater than or equal to 0.5% by weight relative to the weight of the composition.

Scleroglucan gums are polysaccharides of microbial origin produced by a fungus of Sclerotium type, in particular Sclerotium rolfsii. They are polysaccharides constituted solely of glucose units.

Scleroglucan gums may or may not be modified. Preferably, the scleroglucan gums used in the present invention are unmodified.

Examples of scleroglucan gums that may be used in the present invention are, in a nonlimiting manner, the products sold under the name Actigum CS, in particular Actigum CS 11 by the company Sanofi Bio Industries and under the name Amigum or Amigel by the company Alban Müller International.

Other scleroglucan gums, such as the gum treated with glyoxal described in French patent application No. 2 633 940, may also be used.

The scleroglucan gum(s) that may be used according to the invention preferably represent from 0.5% to 10% by weight, more preferentially from 0.5% to 5% by weight, even more preferentially from 0.5% to 3% by weight, better still from 0.5% to 2% by weight and even more preferentially from 0.7% to 1.5% by weight relative to the total weight of composition (A).

According to one embodiment of the invention, the oxidizing composition (B) comprises one or more scleroglucan gums, preferably in a total content of greater than or equal to 0.5% by weight relative to the weight of the composition.

Preferably, according to this embodiment, the scleroglucan gum(s) that may be used according to the invention preferably represent from 0.5% to 10% by weight, more preferentially from 0.5% to 5% by weight, even more preferentially from 0.5% to 3% by weight, even more preferentially and even more preferentially from 0.5% to 2% by weight or even from 0.7% to 2% by weight relative to the total weight of the oxidizing composition (B).

Cationic Polymers

The composition according to the invention comprises one or more cationic polymers.

For the purposes of the present invention, the term “cationic polymer” denotes any polymer containing cationic groups and/or groups that can be ionized into cationic groups.

The cationic polymers that may be present in the composition according to the invention may be chosen from any of those already known per se as improving the cosmetic properties of the hair, i.e. notably those described in patent application EP-A-337 354 and in French patents FR-2 270 846, 2 383 660, 2 598 611, 2 470 596 and 2 519 863.

The cationic polymers that are preferred are chosen from those containing units including primary, secondary, tertiary and/or quaternary amine groups, which may either form part of the main polymer chain or be borne by a side substituent directly attached thereto.

The cationic polymers used generally have a number-average molecular mass of between 500 and 5×10⁶ approximately and preferably between 10³ and 3×10⁶ approximately.

Among the cationic polymers that may be mentioned more particularly are polymers of the polyamine, polyaminoamide and polyquaternary ammonium type.

These are known products. They are notably described in French patents 2 505 348 and 2 542 997.

Preferably, the cationic polymer(s) according to the invention are not associative; in particular, they do not contain any fatty chains including from 8 to 30 carbon atoms.

Preferably, the cationic polymer(s) are chosen from:

(1) Homopolymers or copolymers derived from acrylic or methacrylic esters or amides and including at least one of the units of formula (I), (II), (III) or (IV) below:

in which:

R3, which may be identical or different, denote a hydrogen atom or a CH3 radical;

A, which may be identical or different, represent a linear or branched alkyl group of 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms, or a hydroxyalkyl group of 1 to 4 carbon atoms;

R4, R5 and R6, which may be identical or different, represent an alkyl group containing from 1 to 18 carbon atoms or a benzyl radical and preferably an alkyl group containing from 1 to 6 carbon atoms;

R1 and R2, which may be identical or different, represent hydrogen or an alkyl group containing from 1 to 6 carbon atoms, and preferably methyl or ethyl;

X denotes an anion derived from a mineral or organic acid, such as a methosulfate anion or a halide such as chloride or bromide.

Mention may be made in particular of the ethyltrimethylammonium methacrylate chloride homopolymer.

The polymers of family (1) can also contain one or more units derived from comonomers which may be chosen from the family of acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen with lower (C1-C4) alkyls, acrylic or methacrylic acids or esters thereof, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, and vinyl esters.

Preferably, the polymers of family (1) are chosen from:

-   -   copolymers of acrylamide and of dimethylaminoethyl methacrylate         quaternized with dimethyl sulfate or with a dimethyl halide,         such as the product sold under the name Hercofloc by the company         Hercules,     -   copolymers of acrylamide and of         methacryloyloxyethyltrimethylammonium chloride, described, for         example, in patent application EP-A-080 976 and sold under the         name Bina Quat P 100 by the company Ciba Geigy,     -   the copolymer of acrylamide and of         methacryloyloxyethyltrimethylammonium methosulfate sold under         the name Reten by the company Hercules,     -   quaternized or non-quaternized         vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate         copolymers, such as the products sold under the name Gafquat by         the company ISP, for instance Gafquat 734 or Gafquat 755, or         alternatively the products known as Copolymer 845, 958 and 937.         These polymers are described in detail in French patents 2 077         143 and 2 393 573,     -   dimethylamino ethyl         methacrylate/vinylcaprolactam/vinylpyrrolidone terpolymers, such         as the product sold under the name Gaffix VC 713 by the company         ISP,     -   vinylpyrrolidone/methacrylamidopropyldimethylamine copolymers         sold in particular under the name Styleze CC 10 by ISP,     -   quaternized vinylpyrrolidone/dimethylaminopropylmethacrylamide         copolymers such as the product sold under the name Gafquat HS         100 by the company ISP,     -   crosslinked polymers of methacryloyl oxy         (C1-C4)alkyltri(C1-C4)alkylammonium salts, such as the polymers         obtained by homopolymerization of dimethylaminoethyl         methacrylate quaternized with methyl chloride, or by         copolymerization of acrylamide with dimethylaminoethyl         methacrylate quaternized with methyl chloride, the         homopolymerization or copolymerization being followed by         crosslinking with an olefinically unsaturated compound, more         particularly methylenebisacrylamide. Use may more particularly         be made of a crosslinked         acrylamide/methacryloyloxyethyltrimethylammonium chloride         copolymer (20/80 by weight) in the form of a dispersion         containing 50% by weight of said copolymer in mineral oil. This         dispersion is sold under the name Salcare® SC 92 by the company         Ciba. Use may also be made of a crosslinked homopolymer of         methacryloyloxyethyltrimethylammonium chloride comprising         approximately 50% by weight of the homopolymer in mineral oil or         in a liquid ester. These dispersions are sold under the names         Salcare® SC 95 and Salcare® SC 96 by the company Ciba.

(2) The cellulose ether derivatives including quaternary ammonium groups, described in French patent 1 492 597, and in particular the polymers sold under the names “Ucare Polymer JR” (JR 400 LT, JR 125 and JR 30M) or “LR” (LR 400 or LR 30M) by the company Amerchol. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose that have reacted with an epoxide substituted with a trimethylammonium group.

(3) Copolymers of cellulose or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer, notably described in U.S. Pat. No. 4,131,576, such as hydroxyalkylcelluloses, for instance hydroxymethyl-, hydroxyethyl- or hydroxypropylcelluloses notably grafted with a methacryloylethyltrimethylammonium, methacrylamidopropyltrimethylammonium or dimethyldiallylammonium salt.

The commercial products corresponding to this definition are more particularly the products sold under the names Celquat L 200 and Celquat H 100 by the company National Starch.

(4) The cationic guar gums described more particularly in U.S. Pat. Nos. 3,589,578 and 4,031,307, such as guar gums containing cationic trialkylammonium groups. Guar gums modified with a salt (e.g. chloride) of 2,3-epoxypropyltrimethylammonium are used, for example.

Such products are notably sold under the trade names Jaguar C13 S, Jaguar C 15, Jaguar C 17 and Jaguar C162 by the company Rhodia.

(5) Polymers formed from piperazinyl units and divalent alkylene or hydroxyalkylene radicals containing straight or branched chains, optionally interrupted with oxygen, sulfur or nitrogen atoms or with aromatic or heterocyclic rings, and also the oxidation and/or quaternization products of these polymers. Such polymers are described, in particular, in French patents 2 162 025 and 2 280 361.

(6) Water-soluble polyaminoamides prepared in particular by polycondensation of an acidic compound with a polyamine; these polyaminoamides can be crosslinked with an epihalohydrin, a diepoxide, a dianhydride, an unsaturated dianhydride, a bis-unsaturated derivative, a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, a bis-alkyl halide or alternatively with an oligomer resulting from the reaction of a difunctional compound which is reactive with a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, a bis-alkyl halide, an epihalohydrin, a diepoxide or a bis-unsaturated derivative; the crosslinking agent being used in proportions ranging from 0.025 to 0.35 mol per amine group of the polyaminoamide; these polyaminoamides can be alkylated or, if they include one or more tertiary amine functions, they can be quaternized. Such polymers are notably described in French patents 2 252 840 and 2 368 508.

(7) Polyaminoamide derivatives resulting from the condensation of polyalkylene polyamines with polycarboxylic acids followed by alkylation with difunctional agents. Mention may be made, for example, of adipic acid/dialkylaminohydroxyalkyldialkylenetriamine polymers in which the alkyl radical includes from 1 to 4 carbon atoms and preferably denotes methyl, ethyl or propyl. Such polymers are notably described in French patent 1 583 363.

Among these derivatives, mention may be made more particularly of the adipic acid/dimethylaminohydroxypropyl/diethylenetriamine polymers sold under the name Cartaretine F, F4 or F8 by the company Sandoz.

(8) Polymers obtained by reacting a polyalkylene polyamine including two primary amine groups and at least one secondary amine group with a dicarboxylic acid chosen from diglycolic acid and saturated aliphatic dicarboxylic acids containing from 3 to 8 carbon atoms. The mole ratio between the polyalkylenepolyamine and the dicarboxylic acid is between 0.8:1 and 1.4:1; the polyaminoamide resulting therefrom is reacted with epichlorohydrin in a mole ratio of epichlorohydrin relative to the secondary amine group of the polyaminoamide of between 0.5:1 and 1.8:1. Such polymers are notably described in U.S. Pat. No. 3,227,615 and 2 961 347.

Polymers of this type are sold in particular under the name Hercosett 57 by the company Hercules Inc. or else under the name PD 170 or Delsette 101 by the company Hercules in the case of the adipic acid/epoxypropyl/diethylenetriamine copolymer.

(9) Cyclopolymers of alkyldiallylamine or of dialkyldiallylammonium, such as the homopolymers or copolymers including, as main constituent of the chain, units corresponding to formula (V) or (VI):

in which formulae k and t are equal to 0 or 1, the sum k+t being equal to 1; R9 denotes a hydrogen atom or a methyl radical; R7 and R8, independently of each other, denote an alkyl group containing from 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group preferably contains 1 to 5 carbon atoms, or a lower (C1-C4) amidoalkyl group, or R7 and R8 may denote, together with the nitrogen atom to which they are attached, heterocyclic groups, such as piperidyl or morpholinyl; R7 and R8, independently of each other, preferably denote an alkyl group containing from 1 to 4 carbon atoms; Y⁻ is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfate, sulfate or phosphate. These polymers are in particular described in French patent 2 080 759 and in its Certificate of Addition 2 190 406.

Among the polymers defined above, mention may be made more particularly of the dimethyldiallylammonium chloride homopolymer sold under the name Merquat 100 by the company Nalco (and its homologs of low weight-average molecular mass), the INCI name of which is Polyquaternium-6, and the copolymers of diallyldimethylammonium chloride and of acrylamide sold under the names Merquat 550 and Merquat 7SPR, the INCI name of which is Polyquaternium-7. Mention may also be made of the copolymers of diallyldimethylammonium chloride and of (meth)acrylic acid known under the INCI name Polyquaternium-22.

(10) The quaternary diammonium polymer containing repeating units corresponding to formula (XV):

in which formula (XV):

R10, R11, R12 and R13, which may be identical or different, represent aliphatic, alicyclic or arylaliphatic radicals containing from 1 to 6 carbon atoms or lower hydroxyalkylaliphatic radicals, or alternatively R10, R11, R12 and R13, together or separately, constitute, with the nitrogen atoms to which they are attached, heterocycles optionally containing a second heteroatom other than nitrogen, or alternatively R10, R11, R12 and R13 represent a linear or branched C1-C6 alkyl radical substituted with a nitrile, ester, acyl or amide group or a group COOR14D or CONHR14D where R14 is an alkylene and D is a quaternary ammonium group;

A1 and B1 represent polymethylene groups containing from 2 to 8 carbon atoms, which may be linear or branched and saturated or unsaturated and may contain, bonded to or intercalated in the main chain, one or more aromatic rings, or one or more oxygen or sulfur atoms, or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide or ester groups, and

X⁻ denotes an anion derived from a mineral or organic acid;

A1, R10 and R12 can form, with the two nitrogen atoms to which they are attached, a piperazine ring; in addition, if A1 denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, B1 can also denote a group —(CH2)n-CO-D-OC—(CH2)n- in which D denotes:

a) a glycol residue of formula: —O—Z—O—, where Z denotes a linear or branched hydrocarbon-based radical or a group corresponding to one of the following formulae:

—(CH2-CH2-O)x-CH2-CH2-

—[CH2-CH(CH3)-O]y-CH2-CH(CH3)-

in which x and y denote an integer from 1 to 4, representing a defined and unique degree of polymerization or any number from 1 to 4 representing an average degree of polymerization;

b) a bis-secondary diamine residue, such as a piperazine derivative;

c) a bis-primary diamine residue of formula: —NH—Y—NH—, where Y denotes a linear or branched hydrocarbon-based radical, or else the divalent radical

—CH2-CH2-S—S—CH2-CH2-;

d) a ureylene group of formula: —NH—CO—NH—.

Preferably, X⁻ is an anion, such as chloride or bromide.

These polymers have a number-average molecular mass generally between 1000 and 100 000.

Polymers of this type are notably described in French patents 2 320 330, 2 270 846, 2 316 271, 2 336 434 and 2 413 907 and U.S. Pat. Nos. 2,273,780, 2,375,853, 2,388,614, 2,454,547, 3,206,462, 2,261,002, 2,271,378, 3,874,870, 4,001,432, 3,929,990, 3,966,904, 4,005,193, 4,025,617, 4,025,627, 4,025,653, 4,026,945 and 4,027,020.

It is more particularly possible to use polymers that are constituted of repeating units corresponding to formula (XVI) below:

in which R10, R11, R12 and R13, which may be identical or different, denote an alkyl or hydroxyalkyl radical containing from 1 to 4 carbon atoms approximately, n and p are integers ranging from 2 to 8 approximately, and X— is an anion derived from a mineral or organic acid. Mention may be made in particular of Mexomere PO sold by the company Chimex (hexadimethrine chloride).

(11) Polyquaternary ammonium polymers formed from repeating units of formula (IX):

in which p denotes an integer ranging from 1 to 6 approximately, D may be nothing or may represent a group —(CH2)r-CO— in which r denotes a number equal to 4 or 7, and X— is an anion.

Such polymers may be prepared according to the processes described in U.S. Pat. Nos. 4,157,388, 4,702,906 and 4,719,282. They are notably described in patent application EP-A-122 324.

Among these polymers, examples that may be mentioned include the products Mirapol A 15, Mirapol AD1, Mirapol AZ1 and Mirapol 175 sold by the company Miranol.

(12) Quaternary polymers of vinylpyrrolidone and of vinylimidazole, for instance the products sold under the names Luviquat FC 905, FC 550 and FC 370 by the company BASF. These polymers may also comprise other monomers, such as diallyldialkylammonium halides. Mention may be made in particular of the product sold under the name Luviquat Sensation by the company BASF.

(13) Polyamines such as Polyquart H sold by Henkel, which is referenced under the name Polyethylene Glycol (15) Tallow Polyamine in the CTFA dictionary, or oxyethylenated (15 OE) coconut kernel polyamines

(14) and mixtures thereof.

Other cationic polymers that may be used in the context of the invention are polyalkyleneimines, in particular polyethyleneimines, polymers containing vinylpyridine or vinylpyridinium units, condensates of polyamines and of epichlorohydrin, polyquaternary ureylenes and chitin derivatives.

Preferably, as cationic polymers that may be used in the context of the present invention, the polymers of families (1), (9) and (10) and mixtures thereof are preferred.

Even more preferably, the cationic polymer(s) are chosen from families (9) and/or (10), preferably mixtures thereof.

Preferably, the copolymers of family (1) are chosen from copolymers comprising a monomer of family (1) also containing one or more units derived from comonomers that may be chosen from the family of acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen with lower (C1-C4) alkyl groups, groups derived from acrylic or methacrylic acids or esters thereof, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, and vinyl esters.

Particularly preferably, according to this embodiment, they are chosen from quaternized or non-quaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers, preferably such as the products whose INCI name is Polyquaternium-11, and/or whose INCI name is VP/dimethylaminoethyl methacrylate copolymer, preferably the compound whose INCI name is Polyquaternium-11.

Preferably, the polymers of family (9) are chosen from dialkyldiallylammonium homopolymers, preferably from the dimethyldiallylammonium halide (in particular chloride) homopolymers notably sold under the name Merquat 100 by the company Nalco (and homologs thereof of low weight-average molecular masses), the INCI name of which is Polyquaternium-6, and the of diallyldimethylammonium halide (in particular chloride) and of acrylamide notably sold under the name Merquat 550, the INCI name of which is Polyquaternium-7.

Preferably, the polymers of family (10) are chosen from the polymers of family (10) formed from repeating units corresponding to the formula:

-   -   in which R1, R2, R3 and R4, which may be identical or different,         denote an alkyl or hydroxyalkyl radical containing from 1 to 4         carbon atoms, n and p are integers ranging from 2 to 20, and X—         is an anion derived from a mineral or organic acid;         preferably the polymers bearing the repeating units of         formulae (W) and (U) below:

and notably those whose molecular weight, determined by gel permeation chromatography, is between 9500 and 9900;

and notably those whose molecular weight, determined by gel permeation chromatography, is about 1200;

preferably the polymer composed of units of formula (IV) for which R1, R2, R3 and R4 represent a methyl radical, n=3, p=6 and X═Cl, known as hexadimethrine chloride.

Preferably, the cationic polymer(s) are chosen from quaternized or non-quaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers, preferably such as the products whose INCI name is Polyquaternium 11, hexadimethrine chloride and dimethyldiallylammonium halide homopolymers or copolymers (Polyquaternium-6 and Polyquaternium-7).

In a preferred variant of the invention, the composition comprises one or more polymers chosen from dimethyldiallylammonium halide homopolymers or copolymers (Polyquaternium-6 and Polyquaternium-7) and hexadimethrine chloride.

Preferably, the total content of cationic polymer(s) in composition (A) according to the invention ranges from 0.1% to 12% by weight relative to the total weight of the composition, preferably from 0.1% to 10% by weight and more preferentially from 0.4% to 7% by weight relative to the total weight of the composition, preferably from 0.5% to 6% by weight.

Carboxylic Acids

The dye composition (A) according to the invention may advantageously comprise one or more carboxylic acids, and/or addition salts thereof and/or solvates thereof, said carboxylic acid(s) being aliphatic compounds, comprising from 2 to 10 carbon atoms and preferably comprising at least two carboxylic groups.

Preferably, they are chosen from aliphatic dicarboxylic and/or tricarboxylic acids comprising from 2 to 10 carbon atoms, preferably from 2 to 8 carbon atoms, better still from 2 to 6 carbon atoms.

In particular, the carboxylic acid(s) are saturated or unsaturated, and substituted or unsubstituted.

Preferably, the carboxylic acids may be chosen from oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, citric acid, maleic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, and mixtures thereof.

Preferably, the carboxylic acid(s) comprise at least two carboxylic groups and are chosen from malonic acid, citric acid, maleic acid, glutaric acid, succinic acid, and mixtures thereof; preferably chosen from malonic acid, citric acid, maleic acid, and mixtures thereof.

More particularly preferably, the carboxylic acid is citric acid.

The total content of carboxylic acid(s) and/or addition salts thereof and/or solvates thereof preferably ranges from 0.1% to 20% by weight, relative to the total weight of composition (A).

Preferably, the total content of carboxylic acid(s) ranges from 0.1% to 20%, preferentially from 0.5% to 10% by weight, better still from 1% to 7% by weight, relative to the total weight of the composition, and even better still from 2% to 5% by weight relative to the total weight of composition (A).

Alkaline Agents

According to a preferred embodiment, the composition according to the invention comprises one or more alkaline agents. The alkaline agents (also known as basifying agents) may be mineral, organic and/or hybrid.

According to a first advantageous embodiment of the invention, the alkaline agent(s) are chosen from mineral alkaline agents, preferably chosen from aqueous ammonia, also known as ammonium hydroxide (or ammonia precursors such as ammonium salts, for example ammonium halides and in particular ammonium chloride), alkali metal or alkaline-earth metal silicates, phosphates, carbonates or bicarbonates, such as alkali metal or alkaline-earth metal metasilicates, sodium or potassium carbonate or bicarbonate, sodium or potassium hydroxide, or mixtures thereof.

Preferably according to this embodiment, the alkaline agents are chosen from aqueous ammonia (or ammonia precursors such as ammonium salts, for example ammonium halides and in particular ammonium chloride) and/or alkali metal or alkaline-earth metal metasilicates.

According to a preferred embodiment, the alkaline agent(s) are chosen from alkanolamines and/or amino acids.

According to a first preferred embodiment, the alkaline agent(s) are chosen from alkanolamines.

The term “alkanolamine” means an organic amine comprising a primary, secondary or tertiary amine function, and one or more linear or branched C₁ to C₈ alkyl groups bearing one or more hydroxyl radicals.

Organic amines chosen from alkanolamines such as monoalkanolamines, dialkanolamines or trialkanolamines comprising one to three identical or different C₁ to C₄ hydroxyalkyl radicals are in particular suitable for performing the invention.

The compounds of this type are preferably chosen from monoethanolamine (MEA), diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N,N-dimethylethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol and tris(hydroxymethyl)aminomethane, and mixtures thereof, preferably monoethanolamine (MEA).

According to a second preferred embodiment, the alkaline agent(s) are chosen from amino acids.

As amino acids that may be used in the composition according to the present invention, mention may notably be made of aspartic acid, glutamic acid, alanine, arginine, ornithine, citrulline, asparagine, carnitine, cysteine, glutamine, glycine, histidine, lysine, isoleucine, leucine, methionine, N-phenylalanine, proline, serine, taurine, threonine, tryptophan, tyrosine and valine.

Advantageously, the amino acids are chosen from basic amino acids, notably comprising an additional amine function optionally included in a ring or in a ureido function.

Examples that may be mentioned include histidine, lysine, arginine, ornithine and citrulline.

The organic amine may also be chosen from organic amines of heterocyclic type. Besides histidine that has already been mentioned in the amino acids, mention may in particular be made of pyridine, piperidine, imidazole, triazole, tetrazole and benzimidazole.

Preferably, the alkaline agent(s) present in the composition according to the invention are chosen from aqueous ammonia, alkanolamines and/or amino acids in neutral or ionic form, in particular basic amino acids such as arginine, and alkali metal or alkaline-earth metal metasilicates.

Preferably, the composition according to the invention comprises one or more alkaline agents.

According to an advantageous embodiment of the invention, the composition according to the invention comprises:

one or more mineral alkaline agents, preferably chosen from aqueous ammonia and/or alkali metal or alkaline-earth metal metasilicates, preferably aqueous ammonia; and

one or more organic alkaline agents, preferably chosen from alkanolamines and/or amino acids, preferably from alkanolamines, preferably monoethanolamine.

The composition according to the invention preferably comprises one or more alkaline agents; it preferably comprises one or more mineral alkaline agents and one or more organic alkaline agents chosen from alkanolamines.

When the composition comprises aqueous ammonia (ammonium hydroxide), its content preferably ranges from 0.1% to 10% by weight, more preferentially from 0.5% to 8% by weight and better still from 1% to 6% by weight, relative to the total weight of the composition.

When the composition comprises one or more alkanolamines, their content preferably ranges from 0.5% to 10% by weight, more preferentially from 1% to 9% by weight and better still from 2% to 8% by weight relative to the total weight of the composition.

Preferably, the composition according to the invention comprises one or more alkaline agents, and they are present in a total content ranging from 1% to 20% by weight, more preferentially from 3% to 18% by weight and better still from 5% to 16% by weight relative to the total weight of the composition.

Associative Polymers

The composition according to the invention may also comprise one or more associative polymers other than the cationic polymers described previously.

Said associative polymers may be chosen from nonionic, anionic and amphoteric associative polymers, preferably from nonionic associative polymers. The associative polymers according to the invention are polymers comprising at least one C₈-C₃₀ fatty chain and of which the molecules are capable, in the formulation medium, of associating with each other or with molecules of other compounds.

Preferably, the fatty chain includes from 10 to 30 carbon atoms.

A particular case of associative polymers is amphiphilic polymers, i.e. polymers including one or more hydrophilic parts which make them water-soluble and one or more hydrophobic zones (comprising at least one fatty chain) via which the polymers interact and assemble with each other or with other molecules.

The associative polymers that may be used in the composition according to the invention are preferably chosen from nonionic associative polymers.

According to a preferred embodiment of the invention, the associative polymer(s) are chosen from:

(1) celluloses modified with groups including at least one

fatty chain;

preferably from:

hydroxyethylcelluloses modified with groups including at least one fatty chain, such as alkyl, arylalkyl or alkylaryl groups, or mixtures thereof, and in which the alkyl groups are preferably C₈ to C₂₂, preferably such as the cetylhydroxyethylcellulose sold notably under the reference Natrosol Plus Grade 330 CS (C₁₆ alkyls) sold by the company Ashland, or the product Polysurf 67CS sold by the company Ashland,

hydroxyethylcelluloses modified with polyalkylene glycol ether alkyl phenol groups, such as the product Amercell Polymer HM-1500 (polyethylene glycol (15) ether of nonyl phenol) sold by the company Amerchol,

and mixtures thereof.

(2) hydroxypropyl guars modified with groups including at least one fatty chain, such as the product Esaflor HM 22 (C₂₂ alkyl chain) sold by the company Lamberti, and the products RE210-18 (C₁₄ alkyl chain) and RE205-1 (C₂₀ alkyl chain) sold by the company Rhodia.

Particularly preferably, the associative polymer(s) are nonionic, and preferably chosen from celluloses modified with groups including at least one fatty chain. Preferably, the nonionic associative polymer(s) are chosen from hydroxyethylcelluloses modified with groups including at least one fatty chain, such as alkyl, aralkyl, alkylaryl groups, or mixtures thereof, and in which the alkyl groups are preferably C₈-C₂₂, and hydroxyethylcelluloses modified with polyalkylene glycol alkyl phenyl ether groups, and mixtures thereof, preferably cetylhydroxyethylcellulose.

When they are present, the associative polymer(s), preferably nonionic associative polymers, are present in the composition in a total weight content preferably between 0.01% and 10%, even more preferentially between 0.05% and 5% of the total weight of the composition, better still between 0.1% and 2% by weight relative to the total weight of the composition.

Surfactants

Preferably, the composition according to the present invention also comprises one or more surfactants, which may be chosen from anionic surfactants, amphoteric or zwitterionic surfactants, nonionic surfactants and cationic surfactants, and mixtures thereof, preferably from nonionic surfactants, cationic surfactants, and mixtures thereof.

The term “anionic surfactant” means a surfactant including, as ionic or ionizable groups, only anionic groups. These anionic groups are preferably chosen from the following groups: CO₂H, CO₂ ⁻, SO₃H, SO₃ ⁻, OSO₃H, OSO₃ ⁻, H₂PO₃, HPO₃ ⁻, PO₃ ²⁻, H₂PO₂, HPO₂ ⁻, PO₂ ²⁻, POH and PO⁻.

According to a preferred embodiment, the composition according to the invention comprises one or more nonionic surfactants.

The nonionic surfactants that may be used according to the invention may be chosen from:

-   -   alcohols, α-diols and (C₁₋₂₀)alkylphenols, these compounds being         polyethoxylated and/or polypropoxylated and/or polyglycerolated,         the number of ethylene oxide and/or propylene oxide groups         possibly ranging from 1 to 100, and the number of glycerol         groups possibly ranging from 2 to 30; or else these compounds         comprising at least one fatty chain including from 8 to 40         carbon atoms and notably from 16 to 30 carbon atoms; in         particular, oxyethylenated alcohols comprising at least one         saturated or unsaturated, linear or branched C₈ to C₄₀ alkyl         chain, comprising from 1 to 100 mol of ethylene oxide,         preferably from 2 to 50 and more particularly from 2 to 40 mol         of ethylene oxide and including one or two fatty chains;     -   condensates of ethylene oxide and propylene oxide with fatty         alcohols;     -   polyethoxylated fatty amides preferably containing from 2 to 30         ethylene oxide units, polyglycerolated fatty amides including on         average from 1 to 5 and in particular from 1.5 to 4 glycerol         groups;     -   ethoxylated fatty acid esters of sorbitan, preferably containing         from 2 to 40 ethylene oxide units;     -   fatty acid esters of sucrose;     -   polyoxyalkylenated, preferably polyoxyethylenated, fatty acid         esters containing from 2 to 150 mol of ethylene oxide, including         oxyethylenated plant oils;     -   N—(C₆-C₂₄ alkyl)glucamine derivatives;     -   amine oxides such as (C₁₀-C₁₄ alkyl)amine oxides or N—(C₁₀-C₁₄         acyl)aminopropylmorpholine oxides;     -   and mixtures thereof.

Among the commercial products, mention may be made of the products sold by the company Cognis under the names Plantaren® (600 CS/U, 1200 and 2000) or Plantacare® (818, 1200 and 2000); the products sold by the company SEPPIC under the names Oramix CG 110 and Oramix® NS 10; the products sold by the company BASF under the name Lutensol GD 70, or the products sold by the company Chem Y under the name AG10 LK.

Preferably, use is made of C₈/C₁₆-alkyl (poly)glycosides 1,4, notably as an aqueous 53% solution, such as those sold by Cognis under the reference Plantacare® 818 UP.

Preferentially, the nonionic surfactants are chosen from:

-   -   saturated or unsaturated, linear or branched, oxyethylenated         fatty alcohols including at least one C₈ to C₄₀, notably C₈-C₂₀         and better still C₁₀-C₁₈ alkyl chain, and comprising from 1 to         100 mol of ethylene oxide, preferably from 2 to 50, more         particularly from 2 to 40 mol, or even from 3 to 20 mol of         ethylene oxide; and     -   (C₆-C₂₄ alkyl)(poly)glycosides, and more particularly (C₈-C₁₈         alkyl)(poly)glycosides;     -   and mixtures thereof;         and even more preferentially from (C₆-C₂₄         alkyl)(poly)glycosides, preferentially (C₈-C₁₈         alkyl)(poly)glycosides.

According to a preferred embodiment of the invention, the composition according to the invention comprises one or more nonionic surfactants, preferably chosen from alkyl(poly)glycosides. Preferably, the composition according to the invention comprises one or more surfactants chosen from (C₆-C₂₄ alkyl)(poly)glycosides, more preferentially from (C₈-C₁₈ alkyl)(poly)glycosides, preferably from C₈/C₁₆-alkyl(poly)glucosides, preferably of 1,4 type, and preferably chosen from decyl glucosides and/or caprylyl/caprylyl glucosides and/or cocoyl glucosides.

According to a first embodiment, the surfactant(s) are nonionic, preferably chosen from (C₆-C₂₄ alkyl)polyglycosides.

According to a preferred embodiment, the composition according to the invention comprises at least one or more cationic surfactants. Preferably, the surfactant(s) are chosen from optionally polyoxyalkylenated primary, secondary or tertiary fatty amine salts, quaternary ammonium salts, and mixtures thereof.

Among the quaternary ammonium salts, preference is given, firstly, to tetraalkylammonium chlorides, for instance dialkyldimethylammonium or alkyltrimethylammonium chlorides in which the alkyl group includes from about 12 to 22 carbon atoms, in particular behenyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium chloride or benzyldimethylstearylammonium chloride, or, secondly, to distearoylethylhydroxyethylmethylammonium methosulfate, dipalmitoylethylhydroxyethylammonium methosulfate or distearoylethylhydroxyethylammonium methosulfate, or also, finally, to palmitylamidopropyltrimethylammonium chloride or stearamidopropyldimethyl(myristyl acetate)ammonium chloride, sold under the name Ceraphyl® 70 by Van Dyk;

-   -   quaternary ammonium salts of imidazoline;     -   diquaternary or triquaternary ammonium salts. Such compounds         are, for example, Finquat CT-P sold by the company Finetex         (Quaternium-89), and Finquat CT sold by the company Finetex         (Quaternium-75);     -   quaternary ammonium salts containing one or more ester         functions, notably diacyloxyethyldimethylammonium,         diacyloxyethylhydroxyethylmethylammonium,         monoacyloxyethyldihydroxyethylmethylammonium,         triacyloxyethylmethylammonium or         monoacyloxyethylhydroxyethyldimethylammonium chloride or methyl         sulfate, and mixtures thereof. The acyl groups preferably         contain 14 to 18 carbon atoms and are derived more particularly         from a plant oil such as palm oil or sunflower oil. When the         compound contains several acyl groups, these groups may be         identical or different.

Such compounds are sold, for example, under the names Dehyquart® by the company Henkel, Stepanquat® by the company Stepan, Noxamium® by the company CECA or Rewoquat® WE 18 by the company Rewo-Witco.

The composition according to the invention may contain, for example, a mixture of quaternary ammonium monoester, diester and triester salts with a weight majority of diester salts.

Use may also be made of the ammonium salts containing at least one ester function that are described in patents U.S. Pat. Nos. 4,874,554 and 4,137,180.

Use may also be made of the behenoylhydroxypropyltrimethylammonium chloride sold, for example, by the company Kao under the name Quartamin BTC 131.

Preferably, the ammonium salts containing at least one ester function contain two ester functions.

Preferably, the cationic surfactant(s) are chosen from cetyltrimethylammonium, behenyltrimethylammonium and dipalmitoylethylhydroxyethylmethylammonium salts, and mixtures thereof, and more particularly behenyltrimethylammonium chloride, cetyltrimethylammonium chloride, and dipalmitoylethylhydroxyethylammonium methosulfate, and mixtures thereof.

The composition preferably comprises one or more cationic surfactants in a total content ranging from 0.01% to 20% by weight, more preferentially from 0.05% to 10% by weight and better still from 0.1% to 5% by weight relative to the total weight of the composition.

The composition preferably comprises one or more nonionic surfactants in a total content ranging from 0.01% to 10% by weight, more preferentially from 0.05% to 5% by weight and better still from 0.1% to 3% by weight relative to the total weight of the composition.

The composition preferably comprises one or more cationic surfactants in a total content ranging from 0.01% to 10% by weight, more preferentially from 0.05% to 5% by weight and better still from 0.1% to 3% by weight relative to the total weight of the composition.

Preferably, the surfactant(s) are chosen from cationic or nonionic surfactants, and mixtures thereof, preferentially cationic surfactants. Preferably, the composition according to the invention comprises at least one or more cationic surfactant and one or more nonionic surfactants.

Medium

The cosmetically acceptable medium that is suitable for dyeing keratin fibers, also known as a dye support, generally comprises water or a mixture of water and of at least one organic solvent to dissolve the compounds that are not sufficiently water-soluble.

More particularly, the organic solvents are chosen from linear or branched and preferably saturated monoalcohols or diols, comprising 2 to 10 carbon atoms, such as ethyl alcohol, isopropyl alcohol, hexylene glycol (2-methyl-2,4-pentanediol), neopentyl glycol and 3-methyl-1,5-pentanediol; glycerol; aromatic alcohols such as benzyl alcohol and phenylethyl alcohol; glycols or glycol ethers, for instance ethylene glycol monomethyl, monoethyl and monobutyl ethers, propylene glycol or ethers thereof, for instance propylene glycol monomethyl ether, butylene glycol or dipropylene glycol; and also diethylene glycol alkyl ethers, notably of C₁-C₄, for instance diethylene glycol monoethyl ether or monobutyl ether, alone or as a mixture.

The common solvents described above, if they are present, usually represent from 1% to 40% by weight and more preferentially from 5% to 30% by weight relative to the total weight of the composition.

The compositions used according to the invention generally comprise water or a mixture of water and of one or more organic solvents or a mixture of organic solvents.

The composition according to the invention preferably comprises water.

Preferably, the water content ranges from 5% to 95% by weight, more preferentially from 10% to 90% by weight and better still from 20% to 80% by weight relative to the total weight of the composition.

pH of the Medium

The pH of the composition according to the invention generally ranges from 1 to 12. Preferably, the pH of composition (A) according to the invention is basic.

For the purposes of the present invention, the term “basic pH” means a pH above 7.

Preferably, the pH of composition (A) according to the invention is above 8, and particularly ranges from 8.5 to 12.

Preferably, the pH of the composition is between 9 and 12.

pH Adjuster

The cosmetically acceptable medium may be adjusted to the desired value by means of acidifying or basifying agents usually used in the dyeing of keratin fibers, or alternatively using standard buffer systems.

Among the acidifying agents, examples that may be mentioned include mineral acids, for instance hydrochloric acid, (ortho)phosphoric acid, boric acid, nitric acid or sulfuric acid, or organic acids, for instance compounds comprising at least one sulfonic acid function, a phosphonic acid function or a phosphoric acid function, or compounds bearing a carboxylic acid function such as those mentioned previously.

Other Additives

The composition according to the invention may also contain various additives conventionally used in hair dye compositions, such as mineral thickeners, and in particular fillers such as clays or talc; organic thickeners other than scleroglucan gums; antioxidants; penetrants; sequestrants; fragrances; dispersants; film-forming agents; ceramides; preserving agents; opacifiers; fatty substances and/or additional direct dyes.

The above additives are generally present in an amount for each of them of between 0.01% and 40% by weight relative to the weight of the composition, and preferably between 0.1% and 20% by weight relative to the weight of the composition.

Needless to say, a person skilled in the art will take care to select this or these additional compound(s) such that the advantageous properties intrinsically associated with the composition(s) that are useful in the dyeing process in accordance with the invention are not, or are not substantially, adversely affected by the envisioned addition(s).

Another subject of the invention is a dyeing process using a dye composition (A) as described previously, with an oxidizing composition (B) comprising one or more chemical oxidizing agents.

In particular, the invention is also directed toward a process for dyeing keratin fibers, and in particular human keratin fibers such as the hair, involving the application to the fibers of a dye composition (A) as defined previously, and of an oxidizing composition (B) comprising at least one chemical oxidizing agent, preferably chosen from hydrogen peroxide and/or one or more systems for generating hydrogen peroxide, preferably from hydrogen peroxide, the oxidizing composition (B) being mixed with the dye composition (A) just before use (application to said fibers) (extemporaneously) or at the time of use, or alternatively the dye composition and oxidizing composition being applied sequentially without intermediate rinsing.

Composition B

Oxidizing Agent:

The oxidizing composition (B) used with the dye composition (A) according to the invention contains one or more chemical oxidizing agents, preferably chosen from hydrogen peroxide and/or one or more systems for generating hydrogen peroxide.

The term “chemical oxidizing agent” means an oxidizing agent other than atmospheric oxygen.

Preferably, the chemical oxidizing agent(s) are chosen from hydrogen peroxide, peroxygenated salts, for instance persulfates, perborates, peracids and precursors thereof, percarbonates of alkali metals or alkaline-earth metals, such as sodium carbonate peroxide, also known as sodium percarbonate and peracids and precursors thereof; alkali metal bromates or ferricyanides, solid hydrogen peroxide-generating chemical oxidizing agents such as urea peroxide and polymer complexes that can release hydrogen peroxide, notably those comprising a heterocyclic vinyl monomer such as polyvinylpyrrolidone/H₂O₂ complexes, in particular in powder form; oxidases that produce hydrogen peroxide in the presence of a suitable substrate (for example glucose in the case of glucose oxidase or uric acid with uricase).

Preferably, the chemical oxidizing agent(s) are chosen from hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, peroxygenated salts, and mixtures of these compounds.

Particularly preferably, the chemical oxidizing agent is hydrogen peroxide.

Preferably, the chemical oxidizing agent(s) represent from 0.05% to 40% by weight, preferably from 0.5% to 30% by weight, more preferentially from 1% to 20% by weight and better still from 1.5% to 15% by weight relative to the total weight of the oxidizing composition (B).

Preferably, the oxidizing composition (B) according to the invention does not contain any peroxygenated salts.

As indicated previously, according to one embodiment of the invention, the oxidizing composition (B) comprises one or more scleroglucan gums, preferably in a total content of greater than or equal to 0.5% by weight relative to the weight of the composition.

Preferably, according to this embodiment, the scleroglucan gum(s) that may be used according to the invention preferably represent from 0.5% to 10% by weight, more preferentially from 0.5% to 5% by weight, even more preferentially from 0.5% to 3% by weight or even from 0.7% to 2% by weight relative to the total weight of the oxidizing composition (B).

The oxidizing composition (B) may also contain various additional compounds or adjuvants conventionally used in compositions for dyeing the hair and as notably defined previously.

The oxidizing composition (B) is generally an aqueous composition. For the purposes of the invention, the term “aqueous composition” means a composition comprising more than 20% by weight of water, preferably more than 30% by weight of water and even more advantageously more than 40% by weight of water.

Preferably, the oxidizing composition (B) usually comprises water, which generally represents from 10% to 98% by weight, preferably from 20% to 96% by weight, preferably from 50% to 95% by weight, relative to the total weight of the composition.

This oxidizing composition (B) may also comprise one or more water-soluble organic solvents as described previously. It may also comprise one or more acidifying agents.

Usually, the pH of composition (B) is less than 7.

The pH of composition (B) of the invention is advantageously between 1 and 7, preferably between 1 and 4 and more preferentially from 1.5 to 3.5.

Finally, the oxidizing composition (B) is in various forms, for instance a solution, an emulsion or a gel.

Dyeing Process

The process of the invention may be performed by applying the dye composition (A) as defined previously and the oxidizing composition (B) successively and without intermediate rinsing, the order being irrelevant. According to a preferred variant, a ready-to-use composition obtained by extemporaneous mixing, at the time of use, of the dye composition (A) as defined previously and of the oxidizing composition (B) is applied to wet or dry keratin fibers. According to this embodiment, preferably, the weight ratio R of the amounts of (A)/(B) ranges from 0.1 to 10, preferably from 0.2 to 2 and better still from 0.3 to 1.

In addition, independently of the variant used, the application of the ready-to-use composition to the keratin materials (resulting either from the extemporaneous mixing of the dye composition (A) and the oxidizing composition (B) or from the partial or total successive application thereof) is left in place for a time generally from about 1 minute to 1 hour and preferably from 5 minutes to 30 minutes.

The temperature during the process is conventionally between room temperature (between 15 and 25° C.) and 80° C. and preferably between room temperature and 60° C.

After the treatment, the keratin materials are optionally rinsed with water, optionally subjected to washing followed by rinsing with water, and are then dried or left to dry.

Preferably, the keratin fibers are human keratin fibers, preferably human hair.

A subject of the invention is also a ready-to-use composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, obtained by extemporaneous mixing, at the time of use, of a composition (A) comprising:

-   -   one or more oxidation dyes;     -   one or more scleroglucan gums in a total content of greater than         or equal to 0.5% by weight relative to the total weight of the         composition;     -   one or more cationic polymers;     -   and a composition (B) comprising     -   one or more chemical oxidizing agents.

The term “extemporaneous” notably means less than 30 minutes, preferably less than 15 minutes before application to the keratin fibers, preferably less than 5 minutes. In particular, the mixture is applied immediately after having been prepared.

According to a particular embodiment of the invention, the chemical oxidizing agent(s) preferably represent a total content ranging from 0.1% to 20% by weight, preferably from 0.5% to 15% by weight or even more preferentially from 1% to 10% by weight relative to the total weight of the ready-to-use composition.

Finally, the invention relates to a multi-compartment device comprising, in a first compartment, a dye composition (A) as described previously, and, in a second, an oxidizing composition (B) comprising one or more oxidizing agents, these compositions having been described previously.

In particular, a subject of the invention is also a multi-compartment device (or “kit”) for implementing the composition for dyeing keratin fibers, preferably comprising at least two compartments, a first compartment containing the dye composition (A) as defined previously, and the second compartment containing at least one oxidizing composition (B) comprising at least one chemical oxidizing agent, preferably chosen from hydrogen peroxide and/or one or more systems for generating hydrogen peroxide, preferably hydrogen peroxide, the compositions in the compartments being intended to be mixed before application, to give the formulation after mixing; in particular, the kit may be an aerosol device.

The examples that follow serve to illustrate the invention without, however, being limiting in nature.

In particular, the dyeing of the keratin fibers obtained in these examples may advantageously be evaluated in the CIE L*a*b* system, using a Datacolor Spectraflash SF600X spectrocolorimeter.

In this L* a* b* system, the three parameters respectively denote the intensity of the color (L*), the green/red color axis (a*) and the blue/yellow color axis (b*). The higher the value of L*, the lighter the color. The higher the value of a*, the redder the color and the higher the value of b*, the yellower the color.

The variation (or extent) of the dyeing between untreated locks of hair and locks of hair after treatment is defined by the parameter DE* and is calculated according to the following equation:

DE*=√{square root over (V(L*−L _(o)*)²+(a*−a _(o)*)²+(b*−b _(o)*)²)}  (i)

In this equation, the parameters L*, a* and b* represent the values measured on locks of hair after dyeing and the parameters L₀*, a₀* and b₀* represent the values measured on locks of untreated hair. The higher the DE* value, the better the dyeing of the keratin fibers.

In the CIE L*, a*, b* system, the chromaticity is calculated according to the following equation:

C*=√{square root over (a* ² +b* ²)}

The higher the value of C*, the more chromatic the coloring.

EXAMPLE 1

The following compositions were prepared from the following ingredients in the following proportions indicated in grams of active material:

Comparative Comparative Comparative Composition composition composition composition A1 C1 C2 C3 (according outside the outside the outside the to the invention invention invention invention) Ammonium 2.47 2.47 2.47 2.47 hydroxide Ethanolamine 4 4 4 4 EDTA 0.2 0.2 0.2 0.2 Sodium sulfite 0.5 0.5 0.5 0.5 Oxidation 1.401 1.401 1.401 1.401 dyes Fragance qs qs qs qs Hexa- 0.3 0.3 0.3 0.3 dimethrine chloride Poly- 0.4 0.4 0.4 0.4 quaternium-6 Cetylhydroxy- 0.2 0.2 0.2 0.2 ethylcellulose Xanthan gum 1 Algin 1 Sclerotium 1 gum Hydroxy- 1 propyl cellulose Water qs 100 qs 100 qs 100 qs 100 Glycerol 10 10 10 10 Cetrimonium 0.25 0.25 0.25 0.25 chloride Caprylyl/ 0.6 0.6 0.6 0.6 capryl glucoside Ascorbic acid 0.4 0.4 0.4 0.4

Visual Evaluation of the Stability of the Compositions

The stability of the dye compositions was evaluated by observing the compositions at T0 (immediately after preparation of the composition) and then after 2 months of storage at 45° C.

Composition Composition Composition Composition C1 C2 C3 A1 Observation Liquid Liquid Liquid Translucent at T0 at texture texture texture gel room Non- Non- Non- Homo- temperature homo- homo- homo- geneous (25° C.) geneous geneous geneous (no phase (phase (phase (phase separation) separation) separation) separation) After 2 Liquid Liquid Liquid Translucent months at texture texture texture gel 45° C. Non- Non- Non- Homo- homo- homo- homo- geneous geneous geneous geneous (no phase (phase (phase (phase separation) separation) separation) separation)

It is observed that composition A1 according to the invention is homogeneous and forms a translucent gel at T0. After 2 months at 45°, composition A1 according to the invention is stable; it is homogeneous and translucent. Comparative compositions C1, C2 and C3 in which the scleroglucan gum was replaced weight-for-weight with another thickener of polysaccharide type are unstable. Specifically, they are liquid and are not homogeneous; phase separation of these compositions is observed as early as T0.

Example 2

The following composition was prepared from the following ingredients in the following proportions indicated in grams:

Composition A2 according to the invention Ammonium hydroxide 1.23 Arginine 3 Ethanolamine 5 EDTA 0.2 Sodium sulfite 0.5 Citric acid 3.3 Sodium metasilicate 2 Toluene-2,5-diamine 0.16 4-Amino-2-hydroxytoluene 0.92 5-Amino-6-chloro-o-cresol 0.2 1-Hydroxyethyl 4,5-diaminopyrazole 1.44 sulfate p-Aminophenol 0.12 Fragance qs Polyquaternium-11 1.84 Hexadimethrine chloride 1.2 Polyquaternium-6 0.8 Cetylhydroxyethylcellulose 0.2 Sclerotium gum 1 Water qs 100 Glycerol 10 Cetrimonium chloride 0.25 Caprylyl/capryl glucoside 0.6 Ascorbic acid 0.4

Visual Evaluation of the Stability of the Composition

The stability of the dye composition was evaluated by observing it at T0 and then after 48 hours at room temperature (25° C.) and then after 2 months of storage at 45° C.

Composition A2 Observation at T0 (immediately Translucent gel after preparation) at room Homogeneous (no phase temperature (25° C.) separation) After 2 months at 45° C. Translucent gel Homogeneous (no phase separation)

It is observed that composition A2 according to the invention is homogeneous and forms a translucent gel at T0. After 2 months at 45°, composition A2 according to the invention is stable and in gel form; it is homogeneous and translucent.

Composition A2 of the example was mixed with 1 times its weight of 20-volumes oxidizing agent (6 g % of H2O2 AM); the mixture thus obtained was applied to locks of natural hair containing 90% white hairs, NW.

The “mixture/lock” bath ratio is, respectively, 10/1 (g/g).

The leave-on time is 30 minutes, on a hotplate set at 27° C. On conclusion of the leave-on time, the locks are rinsed and then dried under a drying hood at 40° C.

The color of the locks was evaluated in the CIE L* a* b* system, using a Datacolor Spectraflash SF600X spectrocolorimeter.

Intense coloring of the keratin fibers is obtained (L*=24.95). 

1.-17. (canceled)
 18. A composition for dyeing keratin fibers, comprising: at least one oxidation dye; at least one scleroglucan gum in a total amount of greater than or equal to 0.5% by weight, relative to the total weight of the composition; and at least one cationic polymer.
 19. The composition of claim 18, wherein the at least one scleroglucan gum is present in an amount ranging from 0.5% to 10% by weight, relative to the total weight of the composition.
 20. The composition of claim 18, wherein the at least one oxidation dye is chosen from benzene-based oxidation bases; wherein the at least one oxidation dye is optionally combined with at least one coupler chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers, heterocyclic couplers, or salts thereof.
 21. The composition of claim 18, wherein the at least one oxidation dye is chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, or salts thereof.
 22. The composition of claim 18, wherein the at least one cationic polymer is present in a total amount ranging from 0.1% to 12% by weight, relative to the total weight of the composition.
 23. The composition of claim 18, wherein the at least one cationic polymer is chosen from compounds of the following families (1), (9), or (10): (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides, and including at least one of the units of formula (I), (II), (III) or (IV) below:

wherein in formulae (I), (II), (III), and (IV): R₃, which may be identical or different, is a hydrogen atom or a CH₃ radical; A, which may be identical or different, is chosen from a linear or branched alkyl group of 1 to 6 carbon atoms, or a hydroxyalkyl group of 1 to 4 carbon atoms; R₄, R₅, and R₆, which may be identical or different, are chosen from an alkyl group containing from 1 to 18 carbon atoms, or a benzyl radical; R₁ and R₂, which may be identical or different, are chosen from hydrogen, or an alkyl group containing from 1 to 6 carbon atoms; X denotes an anion derived from a mineral or organic acid; (9) cyclopolymers of alkyldiallylamine or of dialkyldiallylammonium, including, as main constituent of the chain, units corresponding to formula (V) or (VI):

wherein in formulae (V) and (VI), k and t are equal to 0 or 1, the sum k+t being equal to 1; R₉ denotes a hydrogen atom or a methyl radical; R₇ and R₈, independently of each other, are chosen from an alkyl group containing from 1 to 6 carbon atoms, a hydroxyalkyl group, or a lower (C₁-C₄) amidoalkyl group, or alternatively, R₇ and R₈ denote, together with the nitrogen atom to which they are attached, heterocyclic groups; Y⁻ is an anion chosen from bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, or phosphate; (10) quaternary diammonium polymers containing repeating units corresponding to formula (XV):

wherein in formula (XV): R₁₀, R₁₁, R₁₂, and R₁₃, which may be identical or different, are chosen from aliphatic, alicyclic, or arylaliphatic radicals containing from 1 to 6 carbon atoms, or lower hydroxyalkylaliphatic radicals, or alternatively, R₁₀, R₁₁, R₁₂, and R₁₃, together or separately, constitute, with the nitrogen atoms to which they are attached, heterocycles optionally containing a second heteroatom other than nitrogen, or alternatively, R₁₀, R₁₁, R₁₂, and R₁₃ are chosen from a linear or branched C₁-C₆ alkyl radical substituted with a nitrile, ester, acyl, or amide group, a group COOR₁₄D, or a group CONHR₁₄D, wherein R₁₄ is an alkylene and D is a quaternary ammonium group; A1 and B1 are chosen from polymethylene groups containing from 2 to 8 carbon atoms, which may be linear or branched, and saturated or unsaturated, and contain, bonded to, or intercalated in the main chain, at least one aromatic ring, an oxygen atom, a sulfur atom, a sulfoxide group, a sulfone group, a disulfide group, an amino group, an alkylamino group, a hydroxyl group, a quaternary ammonium group, an ureido group, an amide group, or an ester group; and X⁻ denotes an anion derived from a mineral or organic acid; wherein A1, R₁₀, and R₁₂ can form, with the two nitrogen atoms to which they are attached, a piperazine ring; and wherein if A1 denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, B1 can denote a group —(CH₂)n-CO-D-OC—(CH₂)n- in which D denotes: a) a glycol residue of formula: —O—Z—O—, where Z is chosen from a linear or branched hydrocarbon-based radical, or a group corresponding to one of the following formulae: —(CH₂—CH₂—O)x—CH₂—CH₂—, or —[CH₂—CH(CH₃)—O]y—CH₂—CH(CH₃)— wherein x and y denote an integer from 1 to 4, representing a defined and unique degree of polymerization, or any number from 1 to 4, representing an average degree of polymerization; b) a bis-secondary diamine residue; c) a bis-primary diamine residue of formula: —NH—Y—NH—, where Y denotes a linear or branched hydrocarbon-based radical, or optionally, the divalent radical —CH₂—CH₂—S—S—CH₂—CH₂—; or d) a ureylene group of formula: —NH—CO—NH—.
 24. The composition of claim 23, wherein the at least one cationic polymer chosen from compounds of family (1) is chosen from quaternized or non-quaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers.
 25. The composition of claim 23, wherein the at least one cationic polymer chosen from compounds of family (9) or (10) is chosen from: dialkyldiallylammonium homopolymers; and cationic polymers formed from repeating units corresponding to the formula (IV′):

wherein R₁, R₂, R₃, and R₄, which may be identical or different, denote an alkyl or hydroxyalkyl radical containing from 1 to 4 carbon atoms, n and p are integers ranging from 2 to 20, and X— is an anion derived from a mineral or organic acid.
 26. The composition of claim 18, further comprising at least one carboxylic acid chosen from malonic acid, citric acid, maleic acid, or mixtures thereof.
 27. The composition of claim 26, wherein the at least one carboxylic acid is present in an amount ranging from 1% to 10% by weight, relative to the total weight of the composition.
 28. The composition of claim 18, further comprising at least one alkaline agent, wherein int at least one alkaline agent is present in a total amount ranging from 1% to 20% by weight, relative to the total weight of the composition.
 29. The composition of claim 28, wherein the at least one alkaline agent is chosen from mineral or organic agents.
 30. The composition of claim 28, wherein the at least one alkaline agent is chosen from aqueous ammonia, alkali metal or alkaline-earth metal metasilicates, alkanolamines, amino acids, or mixtures thereof.
 31. The composition of claim 30, wherein the at least one alkaline agent comprises aqueous ammonia (ammonium hydroxide) and at least one alkanolamine.
 32. The composition of claim 18, further comprising at least one nonionic surfactant chosen from: saturated or unsaturated, linear or branched, oxyethylenated fatty alcohols including at least one C₈ to C₄₀, and comprising from 1 to 100 mol of ethylene oxide; alkylpolyglycosides; or mixtures thereof.
 33. The composition of claim 32, wherein the at least one nonionic associative polymer is chosen from celluloses modified with groups including at least one fatty chain.
 34. The composition of claim 18, further comprising at least one chemical oxidizing agent.
 35. The composition of claim 34, wherein the at least one chemical oxidizing agent is chosen from hydrogen peroxide, or at least one system generating hydrogen peroxide.
 36. A method for dyeing keratin fibers, comprising applying to the keratin fibers a dye composition (A) and an oxidizing composition (B), wherein: the dye composition (A) comprises: at least one oxidation dye; at least one scleroglucan gum in a total amount of greater than or equal to 0.5% by weight, relative to the total weight of the dye composition (A); and at least one cationic polymer; the oxidizing composition (B) comprises at least one chemical oxidizing agent; and the oxidizing composition (B) is extemporaneously mixed with the dye composition (A) just before being applied to the keratin fibers, or alternatively, the dye composition (A) and the oxidizing composition (B) are applied sequentially to the keratin fibers without intermediate rinsing.
 37. A multi-compartment kit comprising: a first compartment containing a dye composition comprising: at least one oxidation dye; at least one scleroglucan gum in a total amount of greater than or equal to 0.5% by weight, relative to the total weight of the dye composition; and at least one cationic polymer; and a second compartment containing an oxidizing composition comprising at least one chemical oxidizing agent. 